Peas and carrots and General maintenance.

[MudRunnerTD]

Give it a good wash, let it dry. Park it on a vacant block around the corner or gravel carpark at the local footy ground and buy 2 spray cans of Fish Oil and go sick and spray the chassis and full drive train. Everything. Fish oil soaks into the pores of Steel and will eliminate Rust and provide a good deep barrier. Forget the Potbelly Black mate it would not even make my list.

If your set on Painting it then use a Body deadener or Bitumen type paint for the underside of the car. Fish Oil is my first choice though and it should be retreated every 1 to 2 years depending on the type of use of the car.